20396+3030 STF2711

 
 
20h 39m 35.12s +30 30' 14.6" P.A. 223 sep 2.4 mag 8.17,9.24 Sp A2.5V dist. 344.83 pc (1124.84 l.y.)
 
 
Coord 2000
20396+3030
Discov num
STF2711
Comp
Coord arcsec 2000
20 39 35.12 +30 30 14.6
Date first
1831
Date last
2016
Obs
34
Pa first
223
Pa last
223
P.A. Now (θ)
223°
Sep first
2.5
Sep last
2.4
Sep. Now (ρ)
2.4"
Mag pri
8.17
Mag sec
9.24
delta mag (ΔM)
1.07
Spectral class
A2.5V (white)
Pri motion ra
-005
Sec motion ra
-005
Pri motion dec
-015
Sec motion dec
-015
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
223
Precise sep
2.408
Constellation
Cygnus
SAO
70331
HIP
101951
Tycho2
2686-00454-1
Gaia DR2
28220740352
HD
196954
BD
BD+29 4124
Distance
344.83
Distance ly
1124.84
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20396+3030 STF2711 1998 32 223 2.3 8.17 9.24 A2.5V D 203935.12+303014.6
20396+3030 STF2711 2011 33 223 2.3 8.17 9.24 A2.5V D 203935.12+303014.6
20396+3030 STF2711 2016 33 223 2.4 8.17 9.24 A2.5V 203935.12+303014.6

If you need more information about this double, apply for a data request form to the WDS.